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Characteristics and abundance of microplastics in bean clam (Donax sp.), Setawar Beach
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Researchers found microplastics in bean clams (Donax sp.) collected at Setawar Beach, Indonesia, characterizing contaminating particles by type, color, and abundance, and noting that the site is exposed to plastic waste from domestic and fishing sources.
Setawar Beach, located in Tanjung Irat Village, Singkep, Lingga Regency, Riau Islands Province, is an area susceptible to plastic waste pollution from domestic waste and fishing activities. Therefore, this research aimed to analyze the characteristics, type, color, and abundance of microplastics in Bean clam (Donax sp.). Purposive sampling was used to obtain Bean clam samples of size 2 mm to 5 cm during low tide, without temporal replication. The results showed that the sample was subjected to an initial analysis including the separation of organic materials using a 30% H₂O₂ solution, followed by a secondary analysis using ZnCl₂ and Fe₂SO₄ solutions. Finally, the process examined the shape and quantity of microplastics under an electron microscope. The highest density and abundance of microplastics were found in the medium and large size, 27.3 ind/m² and 44.9 particles/gram dry weight, respectively. This was connected to longer lifespan and higher filtration capacity of large individuals. The most common types of microplastics were fiber and film, with a total of 102.87 and 5.41 particles/gram dry weight, respectively. The correlation between clam density and microplastic abundance was very low (r = 0.12, p > 0.05).
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Researchers measured microplastic concentrations in the Asiatic hard clam (Meretrix meretrix) collected from Lemo Beach, an area of high fishing and aquaculture activity in Indonesia. They found microplastics in all sampled clams, with fibers most prevalent, raising concerns about contamination of this commercially important shellfish.
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Researchers sampled water, sediment, crabs, and gastropods along the Blanakan coast of Indonesia and detected microplastics in all sample types, with fragments, films, fibers, and pellets all present — suggesting widespread contamination that poses a food safety concern for local seafood consumed by humans.
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Researchers characterised the distribution and types of microplastics in coastal sediments of Sepanjang Beach, Indonesia, examining microplastic presence in relation to gastropod digestive tract contamination in the local marine environment.
Isolation and Analysis of Microplastics in Feather Clams (Anadara antiquata) at Tanjung Luar Fish Landing Base, East Lombok Regency
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Researchers isolated and characterized microplastics from feather clam tissues collected at Tanjung Luar fish landing base in East Lombok, Indonesia. Multiple microplastic types were found in the soft tissues of bivalves that are regularly consumed by local communities, raising food safety concerns for this seafood-dependent coastal population.
Identification of Microplastic Composition on Clams (Gafrarium tumidum) and Sediments in Seribu Island, Pari Island Area, DKI Jakarta
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.